Had an interesting day yesterday - walked into the LGS and there on the counter a barrel from a modern (black painted finish not blued) shotgun - opened up like a bean can at the business end - didnt ask the server guy but the screw in choke was blown clear off - looked to me like the owner shot a big slug load with the full choke insert in -----
Then a couple hours later at a gunsmith mates place he shows a barrel from an old S&W 38 with two seriously obvious ring bulges in the barrel - lumps you could see from feet away, not just little ones - woulda thought doin the first one would be scary enough to prevent a second............................................ .